Since you are looking to do this professionally, you will want to be submitting for as many jobs as you can to make the most out of the incredible access this platform gives actors. So you would be best served by creating and paying for an Actors Access Plus account which gives you unlimited submissions, unlimited ECO Cast auditions, no charge to include your media in submissions and more.
Competition [in a scene] is healthy. Competition is life. Yet most actors refuse to acknowledge this. They don’t want to compete. They want to get along. And they are therefore not first-rate actors.